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VTA adjustment for VPI 10.5 tonearm

I am trying to get the VTA adjustment right on my reference superscoutmaster signature/10.5/koetsu rosewood signature platinum combo and right now classic records 200g and 180g set at "85" position seem right with a slight boominess in the bass. With thinner records (140-150g), it seems I need to lower it to around the "50" position in order to not have a graininess in the sound. Is my thinking correct or is there some other adjustment like adjusting the gain (I am using 30ohm load on my pass labs xono phonostage)? Any input would be appreciated. Also, how do I know the correct distance to keep the rim drive from the platter and should it be in the silver ridge or should I adjust the minifeet to have the rim sitting on the black part of the platter?
powerdoctor

Showing 1 response by stevecham

stevecham
3,340 posts
 
I have a JMW10.5/Aries 2 and my solution to VTA was to set the arm tube to parallel with the record surface using a millimeter ruler and a 180 gram LP, with the cartridge aligned and set for proper VTF, of course.

The last thing I want to do is screw around (literally) with the VTA tower for every record I play. This approach works perfectly for my tastes and the sonics are just right for every recording I play, regardless of thickness. Set it and forget it is my vote.

Can't help you with the rim drive however, I am still using the belt.
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